Churn



(N0 Modell) R. A. WOOLDBIDGE.

GHURN.

Patented Apr. 6, 1886.

//v VE/VTOR R A WOOLDRID e5.

WITH/ E8858;

ATTORNEY UNiTnn STATES PATENT OFFICE.

ROBERT A. WOOLDBIDGE, OF EAST LYNNE, MISSOURI.

CHURN.

SPECIFICATION forming part of Letters Patent No. 339,243, dated April 6,1886.

Serial No. 181L150. (No model.)

To (all whom it may concern:

Be it known that I, ROBERT A. Woon BRIDGE, a natural born citizen of theUnited States, residing at East Lynne, in the county of Cass and Stateof Missouri, have invented certain new and useful Improvements in aChurn, of which the following is a specifica' tion, reference being badtherein to the accompanying drawings.

My invention relates to churns; and it consists in certain improvementstherein, to he hereinafter fully described.

The object of my said invention is to provide a pair of reciprocatingchurn-dashers, which shall be operated in a cylindrical wooden ormetallic churn, said dashers together forming a cylindrical disk whichis equal to the inner periphery of the churn, and each movingindependently of the other, being attached to dasher-statl's providedwith knuoklejoints near their centers and hung from an eccentric shaft,which is mounted in U-shapcd supports secured to the top or head of thechurn and rotated by a crank so geared that at each revo lution of thesame three Strokes ofthe dashers are given.

In the drawings, Figure l is a vertical section of my device, and Fig. 2is a cross-section ofthe same, showing the manner of connecting the topsof the dasher-staifs to the shaft,

A represents a cylindrical churn, the sides and bottom being integral,and having the head B removably fitted therein. This head is providedwith openings 0 b, to permit the passage of the dasher'stali's (l, whichare hung to the eccentricshaft D, said shaft being j ournaled andrevolving in the U shaped uprights or supports H, which are attached toor cast with the head B. One end of this eccentricshaft carries agear-wheel, E, which receives its motion from another and largergearwheel, F, mounted on a spindle or projecting stud in a cross-barofone of the supports H, and said wheel F is revolved by the crank I Bymaking the wheel I one-half larger than the wheel E it follows that onerevolution of wheel F carries wheel E and the eccentricshaft once and ahalf around, causing three strokes of the dasher-staiifs O alternately,these stafis having knuckle-joints 0 near their centers.

Thus the strokes of the dashers are multiplied and the process ofbutter-making is facilitated.

The two sections of the dasher-staff O are designated, respectively, bythe letters 0 for the upper and 0* for the lower, and they are kconnected by metallic side pieces, 6, having openings 0 therein, toreceive pivot-pins ff, passi ng through the ends ofthe sections candc'The lower end of each side piece 6 has two or more openings, (1, toallow the distance between the ends of the sections to be changed, thusenabling the dasher-stali's to be lengthened or shortened at will tochange the depth of the stroke.

The head or top B of the churn fits into the cylinder, and is providedwith a projecting flange to retain it in its place, and it can bereadily removed to fill or empty the cylinder or to clean the dashersand daslrerstaifs.

The dasher-staii's are preferably made cylindrical, but may be madesquare, and the lower sections are made hollow to allow air to passfreely into the churn.

The dashers 0 being semi-cylindrical and together of the exact size ofthe inner periphery of the churn-cylinder, and having a great manyperforations through their faces, the cream will be comminuted andforced through the perforations in the dashers and thoroughly beaten andmixed at each revolution of the crank, and all the butter will bespeedily extracted. The openings 1) in the top are lined with a boxingof brass or Babbitt. metal in order to fit closely to the lower section,a, of the dasher-staft' C, so that no cream can escape even should thechurn be full or nearly so, while the air entering by the longitudinalopenings or hollowsin the lower sections will greatly facilitate theformation of the butter,

and the openings will permit the escape of odors from the churn whilebeing operated.

The operation is as follows: Lift the cover or top from the cylinder bymeans of the supports H. This will carry with it all the mechanism. Thenintroduce the cream, replace the cover, and revolve the eccentric-shaftby means of the handle or winch, and a change from cream to butter willquickly take place. I am aware that churns opening at the top are notnew; nor are reciprocating or divided dashers,'nor an eccentric-shaft.Therefore, I provided with a series of openings, 6, and the claim noneof these, broadly; but pivot-pins ff, and the mechanism whereby What Ido claim as my invention,and desire motion is imparted to the saidshafts, all to secure by Letters Patent, is substantially as hereinshown and described. 5 In areciprocating dasher-churn, the combi- Intestimony whereof I affix my signature in :5

nation of the cylinder A with the removable presence of two witnesses.

head B, provided with openings 1) for the pas- ROBERT A. VVOOLDRIDGE,sage of the closely-fitting dasher-stafis,the hol- Witnesses: lowdasher-staffs O, jointed, as described, and O. H. MORROW,

IO connected by the metallic slides e, which are l I. P. WHEELER.

